112821887 has 2 divisors, whose sum is σ = 112821888. Its totient is φ = 112821886.

The previous prime is 112821883. The next prime is 112821899. The reversal of 112821887 is 788128211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112821887 - 2² = 112821883 is a prime.

It is a super-3 number, since 3×112821887³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112821887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112821881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56410943 + 56410944.

It is an arithmetic number, because the mean of its divisors is an integer number (56410944).

Almost surely, 2^112821887 is an apocalyptic number.

112821887 is a deficient number, since it is larger than the sum of its proper divisors (1).

112821887 is an equidigital number, since it uses as much as digits as its factorization.

112821887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14336, while the sum is 38.

The square root of 112821887 is about 10621.7647780395. The cubic root of 112821887 is about 483.2046664512.

The spelling of 112821887 in words is "one hundred twelve million, eight hundred twenty-one thousand, eight hundred eighty-seven".